Yet, the co〆xistence of grouping and rightヽensoring poses major difficulties in regression analysis. To implement generalised linear regression of GRC counts, we derive modified Poisson estimators and their asymptotic properties, develop a hybrid line search algorithm for parameter inference, ...
This paper provides an EM algorithm for ML estimation of the latter model by standard software for Poisson regression. It is shown, that this algorithm can be used also to estimate the Poisson parameters of zero-inflated, zero-deflated, and standard Poisson models, when the zero observations ...
This study introduces a new two-parameter Liu estimator (PMTPLE) for addressing the multicollinearity problem in the Poisson regression model (PRM). The estimation of the PRM is traditionally accomplished through the Poisson maximum likelihood estimator (PMLE). However, when the explanatory variables ...
Lee L.-F. Specification tests for Poisson regression models Discussion paper no. 208, Center for Economic Research, University of Minnesota, Minneapolis, MN (1984) Google Scholar Lee, 1984b Lee L.-F. Comment to tests of specification in econometrics Econometric Reviews, 3 (1984), pp. 257-25...
A Poisson regression indicated that all explanatory variables and their 1st order interactions were highly significant. There were significant differences among bee taxa, sites and years, and their interactions (bee 脳 site; bee 脳 year; site 脳 year). Megachile species were the predominant cavity ...
A new modified Jackknifed estimator for the Poisson regression model. The Poisson regression is very popular in applied researches when analyzing the count data. However, multicollinearity problem arises for the Poisson regre... T��rkan,Semra,?zel,... - 《Journal of Applied Statistics》 被...
It was also concluded that variation of elastic rock parameters like Young's modulus, Poisson's ratio and tensile strength is similar to that of the ultimate strength (Read et al., 1987). Nowadays, most of the rock engineering designs and structures are related to the transversely isotropic ...
(Fig.4A). Next, we set the material-related physical quantities for the model. The corneal density was set to 1.4 g/mm3, Young’s modulus was 3.8 MPa, and Poisson’s ratio was 0.49. The solid mechanics physics were then added to the geometry model, which was set to a linear elastic...
The elastic modulus and Poisson’s ratio are 2 GPa and 0.4, respectively. Figure 8 (a) shows the comparison of GRCs calculated by five cases. Case 1 does not consider the strain-softening behavior after the rock stress reaches the peak strength, so the calculated deformation of the ...
A modified poisson regression approach to prospective studies with binary data. Relative risk is usually the parameter of interest in epidemiologic and medical studies. In this paper, the author proposes a modified Poisson regression a... Guangyong,Zou - 《American Journal of Epidemiology》 被引量:...